I have said many times that I feel satoshi’s biggest mistake with Bitcoin was not putting in a block size adjustment feature similar to the way difficulty is adjusted. I believe the blocksize limit was put in place as a knee jerk reaction to the chain being spammed and if satoshi had more time on this earth a method to adjust the blocksize limit would have been put in place.
Satoshi could have only done so much himself.
And it's funny how these days many people bring up sidechains and lightning as potential solutions to bitcoin's scalability issue, based on the argument that bitcoin should change as little as possible, when satoshi himself admitted that the infrastructure as it stood when he was around in the community was insufficient for scaling, and would eventually need to be changed.
Not changing bitcoin at least slightly to accommodate for biger volumes of transactions, especially when there's demand for that, is actually against satoshi's very vision.